Observation of microwave-induced zero-conductance state in Corbino rings of a two-dimensional electron system

被引：166

作者：

Yang, CL ^{[1
]}

Zudov, MA

Knuuttila, TA

Du, RR

Pfeiffer, LN

West, KW

机构：

[1] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA

[2] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.91.096803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using Corbino samples we have observed oscillatory dc conductance in a high-mobility two-dimensional electron system when it is subjected to crossed microwave and magnetic fields. At the strongest of the oscillation minima the conductance is found to be vanishingly small, indicating a macroscopic insulating state associated with this minimum. With increasing voltage bias, a crossover from Ohmic to electron-heating regime is observed.

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页数：4

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